Tire-armor.



A. L. POWELL.

TIRE AEMOR.

APPLICATION FILED Mun, 191s June 2,

2 BEEETSSHBET 1.

fgz- A. L. POWELL.

TIRE ARMOR.

'RPPLIOATION FILED MAY 17, 1913.

1,098,588. Patented June 2, 1914.

2 SHEET3-SHEET 2.

LQ Q u Armors, of which the following is a speci the armor; Fig. 2 is a longitudinal section cross-section. The sections are made of thin 7 )letely encircle the inner tube 11 circumferentially, and it'is placed between the -U .NITED STATES PllENT OFFICE.

ALVAH L. lrownnnor strooxron. CALIFORNIA, ASSIGNQR or ONE-FIF'IIETH T0 HENRY n. WOLFE, or STOCKTON, CALIFORNIA.

TIRE-Airmen.

To all whom it may concern:- 1

Be it known that I, ALVAH L; POWELL, a citizen of' the United States, residing. at Stockton, inthe county, of San J oaquin' and State of California have invented certain new and useful improvements in Tireflcation.

This invention relates to pneumatic tires which are provided with all-internal armor, the same being interposed between the inner tube and the casing of'the tire, and serving to protect the former against puncture.

It is the object of the invention to provide a. tire armor of the kind stated which is simple and inexpensive, and which is so constructed and arranged that it affords complete protection without reducing the resiliency of the tire.

In the accompanying drawings forming a part of this" specificatiom, Figure l is a cross-section showing .one embodiment of on the line 2-2 of Fig. 1; Fig.3 is a crosssection of a tireshowing'another embodiment of the armor; Fig. 4 is 'a perspective view showing the means for protectingthe cover of the armor, andFig. 5 is a crosssection showing diagrammatically another embodiment of the armory;

In the drawings, 10 denotes the outer casing of 'an ordinary pneumatic tire, said casing inclosing the usual inflatable tube 11. The tire is secured to the felly of the wheel by a rim 12 in the ordinary manner.

The armor shown in, Figs. 1 and 2 comprises a ring consisting of two transversely curved sections 13. Each section is'substantially quadrantal transversely, so that when the sections are assembled side by side, the ring is substantially semi-circular in sheet steel or other suitable metal. The di: ameter of the ring is such that it mayv comoutcr portion of said tube and the tread portion of the casing 10, as shown in Fig. 1. The ring also extends down the sides of the inner tube and terminates at or about the middle thereof. Thus, the entire surface of the inner tube, liable to puncture, is covered and protected.

The adjaccntends 'of the se tions 13, slid- Specification of Letters Patent Application filed May 17 1913. Serial l miters-5.

indicated at 17.

ably overlap, and are connected by strips 15 of I any suitable resilient material, which overlapping position; The overlapping ends may be beveled as shown at 16, forming a smooth joint, which allows free. and easy movement and maintainsaacircular section' In order to prevent the armor from. chafing and wearing the tire casing. and the inner tube, the section 13 which lies next tothe inner tube has its inner surface cov- Patented June 2, 1914.

permit outward sliding movement and ten? to. draw. the sections backto theirnorma so I ered with rubber or other soft material, as v the lapping end distance to cover the inner surface of the other section. The outer surface of the last- This material extends from of the section a sufiicient mentioned section has a protecting covering l8wwhich extends from' the lapping end thereof over the outer surface of the firstmenjtionedseetion. ,Thus, both sections are lined on both sides, and all danger of the armor cutting the tire casing or. the inner tube .is obviated.

The two section's-13 are also divided trans versely, and their ends are slidably overlapped as shown in Fig. 2, so that the armor may yield circumferential-Hy. The trans-= i verse overlapping of the sections permits the armor to yield transversely. It will therefore be evident that the armor does. not stiffen the tire but yields freely therewith, and the resiliency of the tire is therefore not reduced to any appreciable degree.

The modified form of armor shown in Fig. 3 comprises two sections .19 which are substantially semi-circular so that they completely encircle the inner tube transversely. Each section is slightly greater than 'a semi circle so that the adjacent ends may overlap as before, the overlapping portions being at the sides of the inner tube.

'Fig. v5 shows an armor having two sections, 20 and 21, respectively, arranged in the same manner as the last described armor,

with the exception that the section 20 is formed integral with the rim 12.

Various other modifications may be made without departure from the scope of the invention as hereinafter claimed.

In order to prevent the overlapping ends of the sections from cutting or wearing the covering 17 and 18, the projecting portions thereof may be faced with transversely extending thin metal strips 22. Fig. 1 shows these strips applied to the covering 17.

To prevent the armor fmm injm'ing the tire in the event of the collapse of the 1211101, the rim 12 iii b0 provided with. side flanges projecting outward from the usual tire base engaging lips 29: 0f the rim. Timsn flanges extend outward along the sides of the. tire casing a suflinient; distance to afiord ""wmm support fur the tire if it should intern and Hwy ctt'nctuzfiy prevent injmy of the thin as well as injury to the armor and the inner tube,

I claim:

A. tire armor cmnprising nnnuhn' metallic sectimis arrange-c1 side by side and encircling the inner tube of the tire, said sections be in curved transversely and their adjacent an s slilably overlapping, a. protecting cu;-

wring on the inner nit-face of one of the auctions and [irojectliig therefrom mvm' the vrwposed ninetsurface of'the other when,

? and it protecting covering 011 the outviy surface of the 1'.ist-i1iei1ti0n0d section um] [)ITO" jccting tilt'lOflOIfi over the expos t1 outer surface of the first;imrntioned 580101), the pi' jmiting portions of mid (:0vc1'ii'1; their shit-5; whi zh um next to tln wwtim'ie: faced with 113mm. a wear strips In testinmny whe 0.1? I aihx my :igmtm'e in presence at two "zViUICt:

ALVA H L. lf't J W M11;

Witnssses EMILY 1*. Cum, M. A. SCHMIDT. 

